Book Image

Elastix Unified Communications Server Cookbook

Book Image

Elastix Unified Communications Server Cookbook

Overview of this book

Table of Contents (24 chapters)
Elastix Unified Communications Server Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Description and Use of the Most Well-known FreePBX Modules
Addon Market Module
Asterisk Essential Commands
Asterisk Gateway Interface Programming
Helpful Linux Commands
Index

Enabling BLFs and hints


BLF means Busy Lamp Field. Generally, this is an LED that shows the status of an extension or line, an application, or even the presence of a user.

Sometimes, this LED is physically embedded into a key that when pressed, can enable or disable an application, and depending on these states, the LED can be turned off or on.

In most of the cases, the BLF points to an extension. For example, an assistant can notice if the boss is busy (LED on) or free to be called (LED off). All IP phones support BLF in most cases.

How to do it…

  1. Go to the PBX | Tools | Asterisk File Editor menu.

  2. Edit the extensions_custom.conf file.

  3. Look for the section (properly named context) [from-internal-custom] and add the following line at the end of this context: include=>call-forward. This is shown in the next image:

  4. Then, at the end of the file, we add the portion of the Dialplan from Asterisk that executes the Call Forward toggle button, as shown in the next screenshot:

  5. Press the Save button and...